地壳与上地幔各向异性成像研究进展OA

Seismic anisotropy studies provide crucial insights into deformation mechanisms and dynamic processes within Earth's interior.This article systematically reviews theoretical approaches,methodological advances,and representative research achievements in crustal and upper mantle anisotropy imaging over the past few decades.We focus on the developmental progress of key techniques,including shear-wave splitting,anisotropic tomography using seismic surface waves and ambient noise,P-wave anisotropic tomography,and SKS splitting-intensity tomography.The analysis highlights characteristic anisotropy patterns and their geodynamic implications in typical tectonic settings such as orogenic belts and subduction zones.Current methodological challenges in anisotropy research are discussed,along with perspectives on future research directions.